bug with type families

[Peter Gavin]

Hello,

I've run into a bug that looks to be the same as the one described here:

http://hackage.haskell.org/trac/ghc/ticket/1897

That bug was reported 7 months ago, and I didn't want to modify the bug 
  just to add a "me too" entry to it.  Is this a major bug that I 
shouldn't expect to be fixed for a while?

BTW, type families work great otherwise, and I appreciate all the work 
put in to GHC in general :)

Thanks a lot,
Peter Gavin